Howdy! Can you be more specific? The more detail you give, the better we can assess what's going on.
Handling - how often do you do educational shows?
Feeding - How many bugs do you feed your cham per feeding? How do you do it - bowl, shooting gallery, by hand? It's probably best to gutload with fresh veggies only. My concern is that the bug burger is over-supplementing the feeders, and if you combine that with a possible over-supplementation of Repashy LoD, that could be a very highly likely cause for your cham not feeling well. I'm going to attach a feeding/gutloading image that'll be really helpful! Also: where are you getting your feeders? I've personally found that local pet store feeders, especially crickets, are often unfortunately infested with parasites because of cross-contamination with other reptiles. It sounds like you have other reptiles as well, which can be prime to pass parasites around too especially if you share feeders across your different animals.
Supplements - How often do you give the LoD? For best health, your cham should be eating all feeders dusted with a calcium powder WITHOUT D3. 2x a month (Say, the 1st and 15th) should be a dusting with the LoD multivitamin. If you give any more than that, you're likely to overdose your cham on D3 and possibly A, which can cause a whole slew of problems, as they're fat-soluable vitamins and can take quite a while to process through their systems. If you're supplementing differently, that could be some explanation for your cham's concerning behaviors.
Watering - How often do you mist, and when? Does the enclosure have a way to dry out between mistings? Do you have good airflow?
History - Have you ever had a fecal float done to test for parasites?
Lighting - The UVB light sounds correct, but from the picture it looks like your boy might be able to get too close. For the T5s, you want his highest branch to be 7-9 inches below the lamp on top of the cage. Also, what brand do you have, and when was the last time you changed it?
Temperature - How are you measuring your temps? I see a digital hygrometer in the image you posted, so that's good! But I don't see a probe thermometer and that's ideal.
Can you post a couple more pictures of your cham himself? Being able to see his body/turrets/legs will help us help you as well!
I think with a few more details, we'll be able to more effectively assess what might be causal in your boy's not feeling well but based on what info I have, my suspicion is too much in the way of D3 and/or A, or maybe parasites.
One of the things I see that concerns me about the enclosure is that while you have EXCELLENT foliage, the bamboo bars there worry me - when the cage gets wet, they can get SLICK. I'd be concerned about your cham slipping and hurting himself. Additionally, you have a lot of horizontal perches, but not much that cross-cross or go angled towards the vertical. I'd swap out the bamboo with real sticks from the yard - they're free and more natural in diameter and texture. Any stick will do as long as it's not from a sap-bearing tree, or anything with a lot of smell, like cedar. A few of the fluker's fake vines to twist and turn around your sticks would also be very helpful. Just don't get the mossy ones - they can flake stuff off and get bits into their eyes. The perches, however, are unlikely to be a contributing factor to his current behavior, unless he's had an injury at some point.
Eyes closed at all in the day time is a bad sign.
@elizaann2 can post our growing list of reputable vets across the country. I'd highly suggest scheduling a vet appointment to find out what's going on. As you probably know, reptiles hide their ailments VERY well and any signs they're outwardly showing usually mean they're headed towards a serious illness.
Finally please see the chart below about gutloading - you may find it beneficial.
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